AriaLyy
8 years ago
parent
9bba3cd899
commit
235dfef19d
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/* |
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* Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.arialyy.aria.core.task; |
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import com.arialyy.aria.util.CAConfiguration; |
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import com.arialyy.aria.util.SSLContextUtil; |
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import java.io.IOException; |
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import java.net.HttpURLConnection; |
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import java.net.ProtocolException; |
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import java.net.URL; |
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import java.net.URLConnection; |
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import javax.net.ssl.HttpsURLConnection; |
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import javax.net.ssl.SSLContext; |
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import javax.net.ssl.SSLSocketFactory; |
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/** |
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* Created by lyy on 2017/1/18. |
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* 链接帮助类 |
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*/ |
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class ConnectionHelp { |
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/** |
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* 处理链接 |
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* |
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* @throws IOException |
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*/ |
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static HttpURLConnection handleConnection(URL url) throws IOException { |
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HttpURLConnection conn; |
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URLConnection urlConn = url.openConnection(); |
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if (urlConn instanceof HttpsURLConnection) { |
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conn = (HttpsURLConnection) urlConn; |
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SSLContext sslContext = |
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SSLContextUtil.getSSLContext(CAConfiguration.CA_ALIAS, CAConfiguration.CA_ALIAS); |
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if (sslContext == null) { |
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sslContext = SSLContextUtil.getDefaultSLLContext(); |
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} |
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SSLSocketFactory ssf = sslContext.getSocketFactory(); |
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((HttpsURLConnection) conn).setSSLSocketFactory(ssf); |
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((HttpsURLConnection) conn).setHostnameVerifier(SSLContextUtil.HOSTNAME_VERIFIER); |
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} else { |
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conn = (HttpURLConnection) urlConn; |
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} |
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return conn; |
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} |
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/** |
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* 设置头部参数 |
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* |
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* @throws ProtocolException |
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*/ |
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static HttpURLConnection setConnectParam(HttpURLConnection conn) throws ProtocolException { |
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conn.setRequestMethod("GET"); |
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conn.setRequestProperty("Charset", "UTF-8"); |
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conn.setRequestProperty("User-Agent", |
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"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)"); |
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conn.setRequestProperty("Accept", |
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"image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*"); |
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////用于处理Disconnect 不起作用问题
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//conn.setRequestProperty("Connection", "close");
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return conn; |
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} |
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} |
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@ -0,0 +1,76 @@ |
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/* |
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* Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.arialyy.aria.core.task; |
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/** |
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* Created by lyy on 2017/1/18. |
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* 下载状态常量 |
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*/ |
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final class DownloadStateConstance { |
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int CANCEL_NUM = 0; |
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int STOP_NUM = 0; |
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int FAIL_NUM = 0; |
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int CONNECT_TIME_OUT = 5000 * 4; //连接超时时间
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int READ_TIME_OUT = 1000 * 20; //流读取的超时时间
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int COMPLETE_THREAD_NUM = 0; |
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int THREAD_NUM = 3; |
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long CURRENT_LOCATION = 0; |
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boolean isDownloading = false; |
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boolean isCancel = false; |
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boolean isStop = false; |
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DownloadStateConstance(int num) { |
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THREAD_NUM = num; |
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} |
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void cleanState() { |
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isCancel = false; |
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isStop = false; |
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isDownloading = true; |
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CURRENT_LOCATION = 0; |
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CANCEL_NUM = 0; |
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STOP_NUM = 0; |
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FAIL_NUM = 0; |
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} |
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/** |
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* 所有子线程是否都已经停止下载 |
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*/ |
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boolean isStop() { |
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return STOP_NUM == THREAD_NUM; |
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} |
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/** |
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* 所有子线程是否都已经下载失败 |
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*/ |
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boolean isFail() { |
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return FAIL_NUM == THREAD_NUM; |
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} |
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/** |
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* 所有子线程是否都已经完成下载 |
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*/ |
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boolean isComplete() { |
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return COMPLETE_THREAD_NUM == THREAD_NUM; |
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} |
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/** |
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* 所有子线程是否都已经取消下载 |
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*/ |
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boolean isCancel() { |
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return CANCEL_NUM == THREAD_NUM; |
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} |
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} |
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@ -0,0 +1,251 @@ |
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/* |
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* Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.arialyy.aria.core.task; |
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import android.util.Log; |
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import com.arialyy.aria.util.CommonUtil; |
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import java.io.File; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.RandomAccessFile; |
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import java.net.HttpURLConnection; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.Properties; |
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/** |
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* Created by lyy on 2017/1/18. |
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* 下载线程 |
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*/ |
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final class SingleThreadTask implements Runnable { |
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private static final String TAG = "SingleThreadTask"; |
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private DownloadUtil.ConfigEntity mConfigEntity; |
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private String mConfigFPath; |
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private long mChildCurrentLocation = 0; |
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private static final Object LOCK = new Object(); |
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private IDownloadListener mListener; |
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private DownloadStateConstance mConstance; |
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SingleThreadTask(DownloadStateConstance constance, IDownloadListener listener, |
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DownloadUtil.ConfigEntity downloadInfo) { |
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mConstance = constance; |
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mListener = listener; |
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this.mConfigEntity = downloadInfo; |
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if (mConfigEntity.isSupportBreakpoint) { |
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mConfigFPath = downloadInfo.CONFIG_FILE_PATH; |
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} |
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} |
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@Override public void run() { |
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HttpURLConnection conn = null; |
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InputStream is = null; |
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try { |
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URL url = new URL(mConfigEntity.DOWNLOAD_URL); |
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//conn = (HttpURLConnection) url.openConnection();
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conn = ConnectionHelp.handleConnection(url); |
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if (mConfigEntity.isSupportBreakpoint) { |
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Log.d(TAG, "线程_" |
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+ mConfigEntity.THREAD_ID |
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+ "_正在下载【开始位置 : " |
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+ mConfigEntity.START_LOCATION |
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+ "，结束位置：" |
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+ mConfigEntity.END_LOCATION |
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+ "】"); |
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//在头里面请求下载开始位置和结束位置
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conn.setRequestProperty("Range", |
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"bytes=" + mConfigEntity.START_LOCATION + "-" + mConfigEntity.END_LOCATION); |
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} else { |
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Log.w(TAG, "该下载不支持断点，即将重新下载"); |
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} |
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conn = ConnectionHelp.setConnectParam(conn); |
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conn.setConnectTimeout(mConstance.CONNECT_TIME_OUT); |
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conn.setReadTimeout(mConstance.READ_TIME_OUT); //设置读取流的等待时间,必须设置该参数
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is = conn.getInputStream(); |
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//创建可设置位置的文件
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RandomAccessFile file = new RandomAccessFile(mConfigEntity.TEMP_FILE, "rwd"); |
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//设置每条线程写入文件的位置
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file.seek(mConfigEntity.START_LOCATION); |
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byte[] buffer = new byte[1024]; |
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int len; |
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//当前子线程的下载位置
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mChildCurrentLocation = mConfigEntity.START_LOCATION; |
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while ((len = is.read(buffer)) != -1) { |
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if (mConstance.isCancel) { |
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break; |
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} |
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if (mConstance.isStop) { |
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Log.i(TAG, "stop"); |
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break; |
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} |
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//把下载数据数据写入文件
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file.write(buffer, 0, len); |
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progress(len); |
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} |
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file.close(); |
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//close 为阻塞的，需要使用线程池来处理
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is.close(); |
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conn.disconnect(); |
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if (mConstance.isCancel) { |
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return; |
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} |
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//停止状态不需要删除记录文件
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if (mConstance.isStop) { |
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return; |
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} |
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//支持断点的处理
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if (mConfigEntity.isSupportBreakpoint) { |
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Log.i(TAG, "线程【" + mConfigEntity.THREAD_ID + "】下载完毕"); |
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writeConfig(mConfigEntity.TEMP_FILE.getName() + "_state_" + mConfigEntity.THREAD_ID, |
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1 + ""); |
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mListener.onChildComplete(mConfigEntity.END_LOCATION); |
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mConstance.COMPLETE_THREAD_NUM++; |
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if (mConstance.isComplete()) { |
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File configFile = new File(mConfigFPath); |
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if (configFile.exists()) { |
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configFile.delete(); |
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} |
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mConstance.isDownloading = false; |
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mListener.onComplete(); |
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} |
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} else { |
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Log.i(TAG, "下载任务完成"); |
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mConstance.isDownloading = false; |
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mListener.onComplete(); |
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} |
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} catch (MalformedURLException e) { |
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mConstance.FAIL_NUM++; |
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failDownload(mConfigEntity, mChildCurrentLocation, "下载链接异常", e); |
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} catch (IOException e) { |
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mConstance.FAIL_NUM++; |
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failDownload(mConfigEntity, mChildCurrentLocation, "下载失败【" + mConfigEntity.DOWNLOAD_URL + "】", |
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e); |
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} catch (Exception e) { |
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mConstance.FAIL_NUM++; |
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failDownload(mConfigEntity, mChildCurrentLocation, "获取流失败", e); |
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} |
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} |
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/** |
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* 停止下载 |
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*/ |
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protected void stop() { |
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synchronized (LOCK) { |
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try { |
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if (mConfigEntity.isSupportBreakpoint) { |
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mConstance.STOP_NUM++; |
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String location = String.valueOf(mChildCurrentLocation); |
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Log.d(TAG, "thread_" |
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+ mConfigEntity.THREAD_ID |
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+ "_stop, stop location ==> " |
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+ mChildCurrentLocation); |
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writeConfig(mConfigEntity.TEMP_FILE.getName() + "_record_" + mConfigEntity.THREAD_ID, |
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location); |
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if (mConstance.isStop()) { |
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Log.d(TAG, "++++++++++++++++ onStop +++++++++++++++++"); |
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mConstance.isDownloading = false; |
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mListener.onStop(mConstance.CURRENT_LOCATION); |
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} |
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} else { |
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Log.d(TAG, "++++++++++++++++ onStop +++++++++++++++++"); |
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mConstance.isDownloading = false; |
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mListener.onStop(mConstance.CURRENT_LOCATION); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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/** |
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* 下载中 |
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*/ |
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private void progress(long len) { |
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synchronized (LOCK) { |
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mChildCurrentLocation += len; |
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mConstance.CURRENT_LOCATION += len; |
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mListener.onProgress(mConstance.CURRENT_LOCATION); |
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} |
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} |
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/** |
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* 取消下载 |
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*/ |
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protected void cancel() { |
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synchronized (LOCK) { |
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if (mConfigEntity.isSupportBreakpoint) { |
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mConstance.CANCEL_NUM++; |
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Log.d(TAG, "++++++++++ thread_" + mConfigEntity.THREAD_ID + "_cancel ++++++++++"); |
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if (mConstance.isCancel()) { |
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File configFile = new File(mConfigFPath); |
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if (configFile.exists()) { |
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configFile.delete(); |
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} |
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if (mConfigEntity.TEMP_FILE.exists()) { |
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mConfigEntity.TEMP_FILE.delete(); |
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} |
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Log.d(TAG, "++++++++++++++++ onCancel +++++++++++++++++"); |
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mConstance.isDownloading = false; |
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mListener.onCancel(); |
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} |
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} else { |
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Log.d(TAG, "++++++++++++++++ onCancel +++++++++++++++++"); |
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mConstance.isDownloading = false; |
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mListener.onCancel(); |
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} |
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} |
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} |
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/** |
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* 下载失败 |
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*/ |
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private void failDownload(DownloadUtil.ConfigEntity dEntity, long currentLocation, String msg, |
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Exception ex) { |
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synchronized (LOCK) { |
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try { |
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mConstance.isDownloading = false; |
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mConstance.isStop = true; |
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if (ex != null) { |
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Log.e(TAG, CommonUtil.getPrintException(ex)); |
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} |
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if (mConfigEntity.isSupportBreakpoint) { |
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if (currentLocation != -1) { |
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String location = String.valueOf(currentLocation); |
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writeConfig(dEntity.TEMP_FILE.getName() + "_record_" + dEntity.THREAD_ID, location); |
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} |
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if (mConstance.isFail()) { |
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Log.d(TAG, "++++++++++++++++ onFail +++++++++++++++++"); |
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mListener.onFail(); |
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} |
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} else { |
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Log.d(TAG, "++++++++++++++++ onFail +++++++++++++++++"); |
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mListener.onFail(); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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/** |
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* 将记录写入到配置文件 |
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*/ |
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private void writeConfig(String key, String record) throws IOException { |
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File configFile = new File(mConfigFPath); |
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Properties pro = CommonUtil.loadConfig(configFile); |
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pro.setProperty(key, record); |
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CommonUtil.saveConfig(configFile, pro); |
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} |
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} |
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@ -0,0 +1,13 @@ |
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package com.arialyy.aria.exception; |
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/** |
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* Created by Aria.Lao on 2017/1/18. |
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* Aria 文件异常 |
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*/ |
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public class FileException extends NullPointerException { |
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private static final String ARIA_FILE_EXCEPTION = "Aria Exception:"; |
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public FileException(String detailMessage) { |
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super(ARIA_FILE_EXCEPTION + detailMessage); |
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} |
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} |
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